Plural of cobalt; multiple pieces, amounts, or types of the metallic element cobalt or cobalt compounds.
Simple plural of cobalt, which comes from German Kobalt, originally a mining term possibly derived from Kobold (goblin), since miners thought troublesome ores were cursed.
When chemists talk about 'cobalts,' they might mean different forms like cobalt metal, cobalt oxide, or cobalt-60 (a radioactive form used in cancer treatment)—same element, totally different properties!
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